1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=X86 3 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=X64 4 5 %v4_varying_complex = type { <4 x float>, <4 x float> } 6 7 define void @FFT(%v4_varying_complex* noalias nocapture %destination, float* noalias %re, <4 x i32>* noalias nocapture %ptr_cast_for_load) nounwind { 8 ; X86-LABEL: FFT: 9 ; X86: # %bb.0: # %begin 10 ; X86-NEXT: pushl %ebx 11 ; X86-NEXT: pushl %edi 12 ; X86-NEXT: pushl %esi 13 ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax 14 ; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx 15 ; X86-NEXT: movl {{[0-9]+}}(%esp), %edx 16 ; X86-NEXT: movdqu (%edx), %xmm0 17 ; X86-NEXT: pslld $4, %xmm0 18 ; X86-NEXT: movd %xmm0, %edx 19 ; X86-NEXT: pextrd $1, %xmm0, %esi 20 ; X86-NEXT: pextrd $2, %xmm0, %edi 21 ; X86-NEXT: pextrd $3, %xmm0, %ebx 22 ; X86-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero 23 ; X86-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero 24 ; X86-NEXT: movss {{.*#+}} xmm2 = mem[0],zero,zero,zero 25 ; X86-NEXT: movss {{.*#+}} xmm3 = mem[0],zero,zero,zero 26 ; X86-NEXT: movss %xmm0, 128(%eax) 27 ; X86-NEXT: movss %xmm1, 164(%eax) 28 ; X86-NEXT: movss %xmm2, 200(%eax) 29 ; X86-NEXT: movss %xmm3, 236(%eax) 30 ; X86-NEXT: popl %esi 31 ; X86-NEXT: popl %edi 32 ; X86-NEXT: popl %ebx 33 ; X86-NEXT: retl 34 ; 35 ; X64-LABEL: FFT: 36 ; X64: # %bb.0: # %begin 37 ; X64-NEXT: movdqu (%rdx), %xmm0 38 ; X64-NEXT: pslld $4, %xmm0 39 ; X64-NEXT: movd %xmm0, %eax 40 ; X64-NEXT: movslq %eax, %r8 41 ; X64-NEXT: pextrd $1, %xmm0, %ecx 42 ; X64-NEXT: movslq %ecx, %rcx 43 ; X64-NEXT: pextrd $2, %xmm0, %edx 44 ; X64-NEXT: movslq %edx, %rdx 45 ; X64-NEXT: pextrd $3, %xmm0, %eax 46 ; X64-NEXT: cltq 47 ; X64-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero 48 ; X64-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero 49 ; X64-NEXT: movss {{.*#+}} xmm2 = mem[0],zero,zero,zero 50 ; X64-NEXT: movss {{.*#+}} xmm3 = mem[0],zero,zero,zero 51 ; X64-NEXT: movss %xmm0, 128(%rdi) 52 ; X64-NEXT: movss %xmm1, 164(%rdi) 53 ; X64-NEXT: movss %xmm2, 200(%rdi) 54 ; X64-NEXT: movss %xmm3, 236(%rdi) 55 ; X64-NEXT: retq 56 begin: 57 %ptr_masked_load79 = load <4 x i32>, <4 x i32>* %ptr_cast_for_load, align 4 58 %mul__bitReversedProgramIndex_load = shl <4 x i32> %ptr_masked_load79, <i32 4, i32 4, i32 4, i32 4> 59 60 %offset32_1 = extractelement <4 x i32> %mul__bitReversedProgramIndex_load, i32 0 61 %ptroffset_1 = sext i32 %offset32_1 to i64 62 %offset32_2 = extractelement <4 x i32> %mul__bitReversedProgramIndex_load, i32 1 63 %ptroffset_2 = sext i32 %offset32_2 to i64 64 %offset32_3 = extractelement <4 x i32> %mul__bitReversedProgramIndex_load, i32 2 65 %ptroffset_3 = sext i32 %offset32_3 to i64 66 %offset32_4 = extractelement <4 x i32> %mul__bitReversedProgramIndex_load, i32 3 67 %ptroffset_4 = sext i32 %offset32_4 to i64 68 69 %ptrcast_1 = getelementptr float, float* %re, i64 %ptroffset_1 70 %val_1 = load float, float* %ptrcast_1, align 4 71 %ptrcast_2 = getelementptr float, float* %re, i64 %ptroffset_2 72 %val_2 = load float, float* %ptrcast_2, align 4 73 %ptrcast_3 = getelementptr float, float* %re, i64 %ptroffset_3 74 %val_3 = load float, float* %ptrcast_3, align 4 75 %ptrcast_4 = getelementptr float, float* %re, i64 %ptroffset_4 76 %val_4 = load float, float* %ptrcast_4, align 4 77 78 %destination_load_ptr2int_2void = bitcast %v4_varying_complex* %destination to i8* 79 %ptrcast1_1 = getelementptr inbounds %v4_varying_complex, %v4_varying_complex* %destination, i64 4, i32 0, i64 0 80 store float %val_1, float* %ptrcast1_1, align 4 81 %finalptr_2 = getelementptr i8, i8* %destination_load_ptr2int_2void, i64 164 82 %ptrcast1_2 = bitcast i8* %finalptr_2 to float* 83 store float %val_2, float* %ptrcast1_2, align 4 84 %finalptr_3 = getelementptr i8, i8* %destination_load_ptr2int_2void, i64 200 85 %ptrcast1_3 = bitcast i8* %finalptr_3 to float* 86 store float %val_3, float* %ptrcast1_3, align 4 87 %finalptr_4 = getelementptr i8, i8* %destination_load_ptr2int_2void, i64 236 88 %ptrcast1_4 = bitcast i8* %finalptr_4 to float* 89 store float %val_4, float* %ptrcast1_4, align 4 90 ret void 91 } 92
